Describe the challenge of transporting oxygen and carbon dioxide in animals. In particular, discuss the polarity of oxygen and carbon dioxide gas, their consequence on solubility in the aqueous environment, and the inadequacy of passive diffusion in transporting these gases into cells and tissues.
Q: Čalvin mixed 1.490 g of zinc with excess hydrochloric acid. The released hydrogen gas was collected…
A: Mass of zinc = 1.490 g Temperature T = 23oC = (273.15 + 23) K = 296.15 K Total pressure = 99.99 KNm2…
Q: Describe the preparation of the following reagents. 1. 250 mL of a solution that is 0.0376 N Mgl2…
A: (1) Given that - Volume of Magnesium iodide, Mgl2 solution = 250 mL Normality of magnesium…
Q: A 25%w/w aqueous phosphoric acid solution has been prepared. Molecular weight of phosphoric acid is…
A: Given data 25 % w/w aqueous phosphoric acid solution. molar mass of phosphoric acid (solute) =…
Q: 5. Arrange the following compounds in order of decreasing volatility: acetone, methanol,…
A:
Q: 17. This scenario mimics a situation a 2022 graduate experienced on their APPE last spring: How many…
A: Here to calculate the ml of anhydrous dextrose 10%(w/v) solution and anhydrous dextrose 2.5% (w/v)…
Q: A layer of 20.0 g of sucrose is spread uniformly over a surface of area 5.0 cm2 and covered in…
A: When two substances are brought together into a system, they mix to a certain extent, this property…
Q: A water-carbonating plant is available for use in the home and operates by providing carbon dioxide…
A: The Henry’s constant of carbon dioxide at 298 K is 3.01 × 103 kPakg/mol. Value of 1 atm in kPa = 1 ×…
Q: factors which would contribure to departure from Nernstian behaviour.
A: Nernst equation is an equation which relates the reduction potential of an electrochemical reaction…
Q: Account for the hydrophobic effect and discuss its manifestations.
A: Hydrophobic is composed of two words hydro and phobic where hydro means water and phobic comes from…
Q: 6. Derive the following relationship that describes the variation of calcium concentration in water,…
A: To derive the given relation:
Q: The concentration of water vapour in the Martian atmosphere is very low - only about 210 ppm (by…
A: Parts per million is a method of expressing the concentration of a component in a mixture. It is…
Q: An aqueous solution with 15 g sulfuric acid is dissolved to make 0.2F solution. The specific gravity…
A: The solution contains 15 g sulfuric acid.
Q: The concentration of O2 in water required to support aerobic aquatic life is about 4 .0 mg dm-3 .…
A: The minimum partial pressure of oxygen in the atmosphere that can achieve this concentration of…
Q: For a given surfactant solution, T = 3.2 x 10-5 mol m2. i) Explain where this equation applies, and…
A: For a given surfactant solution,
Q: At atmospheric pressure, water melts as the temperature increases from 270 K to 280 K because O the…
A: The process in which physical state of water changes from solid to liquid under the application of…
Q: KMnO4 and Na2C2O4 solutions were used in the reactions that took place in a back titration to…
A:
Q: Calculate the molar concentration of the polycyclic aromatic hydrocarbon (PAH), anthracene (178.23…
A: We have to calculate the molar concentration of water .
Q: What mass of cesium bromide must be added to 0.500 L of water (d=1.00 g/mL) to produce a 0.400…
A: The formula to calculate mass of water is as follows: Mass of water = (density of water) (volume of…
Q: . Calculate the mass of oxygen (in mg) dissolved in a container of 5.0OL of vater exposed to a…
A: we know partial pressure of O2 given by PO2=XO2×Pwhere XO2 =mole farction of o2=0.21…
Q: At 20 °C, the mass density of a 20 per cent by mass ethanol–water solution is 968.7 kg m−3. Given…
A:
Q: Suppose that on another planet the atmosphere consists of17% Kr, 38% CH4, and 45% O2. What is the…
A: Given information: Composition of Kr = 17 % Composition of methane = 38% Composition of O2 = 45%
Q: Determine the mole fraction of C3H8O and H2O in a solution prepared by dissolving 15g of alcohol in…
A: Given-> Weight of alcohol (C3H8O) = 15 gm Weight of H2O = 100 gm
Q: Suggest an explanation for the observations that propanol, C3H7OH, is miscible with water and that…
A: According to concept of like dissolve like, polar molecule will miscible in polar solvent and…
Q: Describe the preparation of the following solutions: a) 500 ml of approximately 0.2M NaOH (40g/mol)…
A:
Q: Describe the preparation of 500 mL of 2.45%(v/v) aqueous ethanol
A: The volume percentage is determined as the volume of solute upon volume of the solution multiplied…
Q: The distribution coefficient of an organic salt between hexane and water is 90. A quantity of 0.1…
A: Fraction of salt present in the aqueous phase after four 25 mL of aliquots of hexane can be given as…
Q: 5. What is the approximate molarity, molality and normality of a 13% w/w solution of H2SO4…
A: Given: percentage solution of sulfuric acid=13% Density of the solution=1.090g/ml The 13% solution…
Q: At what rate would oxygen concentration in the gas within the international space station decrease…
A: The initial data is given at 21% product mode of O2, it starts when electrolytic oxygen generation…
Q: Calculate the molar concentration of the polycyclic aromatic hydrocarbon (PAH), anthracene (178.23…
A: Given: Concentration of well water sample = 2.18 ppb Density of well water sample =1.00 g/mL To…
Q: A standard solution of NaOH as prepared by dissolving 4g of the solute in 250cm3. A) determine the…
A:
Q: Explain and sketch the Born-Mayer equation to determine the crystallization energy of NaCl and MgCl2
A:
Q: Commercial perchloric acid (100.46 g/mol) 71% (w/w) with specific gravity of was diluted by taking…
A: Molar concentration : It is define the mole of substance in one Liter volume of solution.…
Q: The mobility of a chloride ion in aqueous solution at 25 °C is 7.91 x 10-8 m2 s-1 V-1. Calculate…
A: Molar ionic conductivity(∧) is property of solution containing 1 mole of solution whereas mobility…
Q: Describe the preparation of 1.67 L of 5.00% (w/v) K2Cr2O7 from the solid salt. B) what is the ppm…
A: Given, Volume of solution to be prepared = 1.67 L Weight by volume percent of K2Cr2O7 = 5.00% A).…
Q: The average concentration of chloride ion in seawater is 19.353g Cl-/kg. The world health…
A: Given information, The average concentration of chloride ion in seawater is 19.353g Cl-/kg. The WHO…
Q: ,factory farm R downstream The above figure shows a river flowing downstream towards the sea. A…
A:
Q: Suppose the rate of evaporation in a hot, dry region is about 2m per year, and the seawater there…
A: Given,Rate of evaporation = 2 m per yearSalinity of seawater = 35 pptYield of NaCl = 90 %Area of…
Q: The mobility of a CH3CO2− ion in aqueous solution at 25 °C is 4.24 × 10−8 m2 s−1 V−1. Calculate its…
A: Given data: Temperature = 25 °C = 25 + 273 = 298 K mobility of a CH3CO2− ion in aqueous solution =…
Q: The carbon dioxide from the combustion of 1.50 grams of C2H6 is collected over water at 25 degrees…
A: Given : Mass of C2H6 combusted = 1.50 g Temperature = 25 oC Pressure of CO2 produced = 746 mm Hg…
Q: Carboxylic acids, including fatty acids and benzoic acids, are often present in both municipal and…
A:
Q: Discuss three practical applications of solvent extraction in analytical chemistry
A: A question based on separation process that is to be accomplished.
Q: The mobility of a NO3− ion in aqueous solution at 25 °C is 7.40 × 10−8 m2 s−1 V−1. Calculate its…
A:
Q: Following the irrigation of salted soils, 10,000 L of salty irrigation runoff was filtered by a…
A: Osmosis is a phenomenon that occurs when there are two regions of different concentrations of…
Q: Describe the preparation of 400 mL of 6 F H;PO4 from the commercial solution which is 85% (w/w)…
A: Since you have asked multiple question, we will solve the first question for you.If you want any…
Q: Calculate the resulting concentration of a solution prepared by diluting 20.00 mL of concentrated…
A: Given: Volume of concentrated HCl solution = 20.00 mL. Volume of diluted HCl solution = 500.0 mL…
Q: Why are there two separate H2O exchange rates observed for [Cu(H 2 O)6]^ 2+ in aqueous solution ?…
A: Two separate H2O exchange rates are due to Jahn Teller Distortions.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- What is proven by the result obtain with the reaction of silver nitrqte with water in the beaker? With l/kl? Whay is the meaning of semi-permiability? What is permeable and what is not? What determines permeability?(a) Based on the tabulated data, prove that the distribution of benzoic acid in water and and benzene follows C2water/Cbenzene=K. Cite the possible relations and assumptions. (b) Determine the moles of benzoic acid which may be extracted from 150 cc of a 0.3 molar aqueous solution 15 cc of benzene at 20oC by (1) single extraction and by (2) five extractions.1. Sodium carbonate is recovered as decahydrate from 1000kg of 5% solution of sodium carbonate in water. If it is desired that 95% of Na2CO3 is to be recovered as decahydrate by cooling to 278 K, determine the following: a) the mass of water evaporated (b) the mass of crystals obtained (Na2CO3 ∙ 10H2O). The solubility of Na2CO3 in water at 278K is 9.0% (weight) 2. A copra batch contains 44% oil and is to be extracted with n-hexane. The extracted meal contains 0.07 kg of oil/kg oil free matter and the mass fraction of n-hexane in it is 0.05. The extract contains 49% n- hexane. If 10,000 kg of copra are to be processed, how many kg of n-hexane are required and the determine the amount of extract. 3. Absorption of sulphur dioxide is carried out in a packed tower. Gas containing 14.8% sulphur dioxide and the rest inert gases enters the tower while the leaving gases contains 1% sulphur dioxide. Water flows at the rate of 1m3/min. The tower handles 7380 m3/hr of gas at 303K and 1 bar. Find…
- (a) Water in vadose zone contains chlorobenzene of concentration 40 mg/L. What is the equilibrium concentration soil air in contact with this solution? (b) An aquifer with porosity 0.3 has distribution coefficient of TCE as 100 L/kg. What fraction of TCE is in aqueous phase and sorbed phase of the soil?Determine the solubility parameters for amorphous polypropylene and poly(methyl methacrylate). (Densities of the two polymers are 0.905 and 1.18 g/mL, respectively.) Consult a polymer handbook and suggest suitable solvents for the two polymers on the basis of solubility parameters.The distribution coefficient, KD (C water/C ether), between ether and water for aspirin at room temperature is 0.30. What weight of aspirin would be extracted by a single extraction with 300 mL of water from a solution of with a concentration of 0.67 M? Calculate the weight of aspirin which would be removed by three extractions with 100 mL portions of water. Compare the weight of solute extracted in single extraction process with the triple extraction process. Take note: The volume of the solution is 100ml
- Polyethylene glycol 400 (PEG400) is a nonvolatile liquid polymer, which when mixed with water canbe used as a base for parenteral formulations. The designation “400” means that the molecular weightof PEG molecules is approximately 400 g/mol. Preparation with water (ΔHv = 40.7 kJ/mol) requires that the two be mixed at 56 oC, at which the equilibrium vapor pressure of pure water is 16.5 kPa. a. If 105 g of PEG400 are added to 500 g of water at 56 oC, what will the boiling temperature of the solution be?Determine the mole fraction of C3H8O and H2O in a solution prepared by dissolving 15g of alcohol in 100g of H20. MW= C:12, H:1, O:16Suppose you have a soil that is made up of 10% organic matter with CEC = 200 cmol/kg, 40% kaolinitewith CEC = 10 cmol/kg, and 50% vermiculite with CEC = 100 cmol/kg.1- Calculate the overall CEC of the soil by taking a weighted average of the three soil components.2- What percentage of the overall CEC is contributed by the organic matter? How does that numbercompare to the 10% of the soil itself that is organic?
- Estimate the diffusion coefficient of the Na+ and Cl− ions in water at 298 K from the molarconductivity at infinite dilution, Λ??∞ (NaCl) = 138.46 S cm2 mol−1 and the transport number,t(Na+) = 0.377. Calculate the mean distance travelled by Cl− ions over a 7 hour period.Question 7Describe the structure and nature of the ionic atmosphere about an ion. Explain whathappens to the ionic atmosphere in the presence of an electric field.A mixture of methane and air is capable of being ignited only if the mole percent of methane is between 5% and 15%. A mixture containing 9.0 mole% methane in air flowing at a rate of 7:00 x 102 kg/h is to be diluted with pure air to reduce the methane concentration to the lower flammability limit. Calculate the required flow rate of air in mol/h and the percent by mass of oxygen in the product gas. (Note: Air may be taken to consist of 21 mole% O2 and 79% N2 and to have an average molecular weight of 29.0.)The distribution coefficient of an organic salt between hexane and water is 90. A quantity of 0.1 mol of the salt dissolved in 100ml of water. Predict how many moles of the salt will remain within the aqueous phase following extraction by using four 25ml of aliquots of hexane to extract the salt from the aqueous solution